IWNL has been supplying businesses for many years and has built a team of experts to manage your water network, so rest assured you are in very good hands.
At Independent Water Networks Ltd (IWNL) we provide clean, safe, and sustainable water to customers on our networks. We are committed to delivering outstanding customer care, with a safe and reliable water supply and sewage services. To find out which services we provide to your business please go to our IWNL Postcode Checker.
Customer assurance
At IWNL, we pride ourselves in offering you the highest possible quality of customer service and simple & transparent pricing. We have a dedicated UK customer service team attending to the needs of all businesses connected to our water and wastewater networks.
To find out more about our Codes of Practice and Guaranteed Standards, please see our useful documents section below. Should you need to get in touch, please do not hesitate to contact us.
Contact us
Water licence
As an independent water company, we can serve sites in all areas run by an incumbent regional water company across England and Wales. We are regulated by Ofwat (The Water Services Regulation Authority) and adhere to the Codes of Practice and Guaranteed Standards for water companies. Our licence enables us to operate public water and sewerage networks under the Water Industry Act 1991.
Where we are appointed by a developer, a New Appointment Variation (NAV) is made by Ofwat. IWNL owns and operates the water and wastewater network in these areas, providing services including supply of water, wastewater services, metering, and billing. IWNL has all the same duties and responsibilities as the previous statutory water company.
Open water market
April 2017 saw the biggest change in the water sector for almost 30 years. That’s because the retail water market opened, allowing an estimated 1.2 million businesses, charities and public sector organisations the freedom to choose their water and wastewater retailer.
Open Water was the name given to the programme set up by UK Government to open the water retail market for businesses, charity and public sector customers in England from April 2017. The Open Water programme is led by three partner organisations, Ofwat, Defra and MOSL, working with existing water companies across England, Scotland and Wales, as well as companies who wish to become a licensed retailer now that the market has opened. Visit Open Water Website.
MOSL
MOSL is the market operator for the non-household water market in England. They support the Open Water programme by working with Defra and Ofwat on behalf of their members. MOSL’s role is to deliver the operational capability needed to support the efficient operation of the new market
Allowing business customers to choose between retailers will lead to more competitive pricing, improved customer service and the flexibility to negotiate better deals and rates with existing suppliers.
Charges Scheme for Essex Suffolk Water and Thames Water’s waste Inset Networks 2025-2026 – Download
Charges Scheme for the South East (West) Water and Thames network 2025-2026 – Download
Charges Scheme for the Thames Water Inset Networks 2025-2026 – Download
Charges Scheme for Southern Water and Thames Water Waste Inset Networks 2025-2026 – Download
Charges scheme for the Affinity Water (East) Network and Anglian Water’s Waste Network 2025-2026 – Download
Charges Scheme for Anglian Waters Network 2025 – 2026 – Download
Charges Scheme for Cambridge Water and Anglian Water’s waste network 2025-2026 – Download
Charges Scheme for South Staff Water and Anglian Water’s Sewerage Network 2025-2026 – Download
Charges scheme for the Affinity Water (South East) Network and Southern Water’s Waste Network 2025-2026 – Download
Charges scheme for the Portsmouth Water and Southern waste networks 2025-2026 – Download
Charges Scheme for the South East (East) water and Southern Water waste network 2025-2026 – Download
Charges Scheme for Southern Inset Networks 2025-2026 – Download
Charges scheme Northumbrian Water 2025-2026 – Download
Charges Scheme for Bristol Water Inset Network and Wessex Water’s Waste Network 2025-2026 – Download
Charges Scheme for the Yorkshire Inset Networks 2025 – 2026 – Download
Charges Scheme for the Sutton and East Surrey Water and Thames network 2025-2026 – Download
Charges Scheme for the Severn Trent Water and Yorkshire Water’s Waste Inset Networks 2025-2026 – Download
Charges Scheme for Bournemouth Water Inset Network and Wessex Water’s Waste Network 2025-2026 – Download
Charges Scheme for the Hafren Dyfrdwy Water and Welsh Water Waste Inset Networks 2025-2026 – Download
Charges scheme for the Affinity Water (Central) and Thames Sewerage Network 2025 – 2026 – Download
Charges scheme for the Affinity Water (Central) Network and Anglian Water’s Waste Network 2025-2026 – Download
Charges scheme for the Wessex Water network 2025-2026 – Download
Charges Scheme for the Sutton and East Surrey Water and Southern network 2025-2026 – Download
Charges Scheme for the South East (West) Water and Southern Water’s waste network 2025-2026 – Download
Charges Scheme for Essex Suffolk Water and Anglian Water’s waste Inset Networks 2025-2026 – Download
Charges Scheme for the Severn Trent Water and Hafren Dyfrdwy’s Waste Inset Networks 2025-2026 – Download
Charges Scheme for the Severn Trent Water Inset Networks 2025-2026 – Download
Charges Scheme for South Staff Water and Severn Trent Sewerage Network 2025-2026 – Download
Charges Scheme for the Yorkshire Water and Severn Trent waste Networks 2025-2026 – Download
Charges Scheme for Anglian Waters and Severn Trent’s sewerage network 2025-2026 – Download
Charges scheme for the South West Water network 2025-2026 – Download
Charges Scheme for United Utilities Inset Network 2025 – 2026 – Download
Charges Scheme for Anglian Water (Hartlepool) and Northumbrian Water’s Waste Network 2025-2026 – Download
Charges Scheme for the Severn Trent Water and United Utilities Waste Inset Networks 2025-2026 – Download
Charges Scheme for Anglian Water (Hartlepool) and Northumbrian Water’s Waste Network 2024-2025 – Download
Charges Scheme for Anglian Waters Network 2024-2025 – Download
Charges Scheme for Bristol Water Inset Network and Wessex Water’s Waste Network 2024-2025 – Download
Charges Scheme for Cambridge Water and Anglian Water’s waste network 2024-2025 – Download
Charges Scheme for Essex Suffolk Water and Anglian Water’s waste Inset Networks 2024-2025 – Download
Charges Scheme for Essex Suffolk Water and Thames Water’s waste Inset Networks 2024-2025 – Download
Charges Scheme for South Staff Water and Anglian Water’s Sewerage Network 2024-2025 – Download
Charges Scheme for South Staff Water and Severn Trent Sewerage Network 2024-2025 – Download
Charges Scheme for Southern Inset Networks 2024-2025 – Download
Charges Scheme for Southern Water and Thames Water Waste Inset Networks 2024-2025 – Download
Charges scheme for the Affinity Water (Central) and Thames Sewerage Network 2024-2025 – Download
Charges scheme for the Affinity Water (Central) Network and Anglian Water’s Waste Network 2024-2025 – Download
Charges scheme for the Affinity Water (East) Network and Anglian Water’s Waste Network 2024-2025 – Download
Charges scheme for the Affinity Water (South East) Network and Southern Water’s Waste Network 2024-2025 – Download
Charges scheme for the Portsmouth Water and Southern waste networks 2024-2025 – Download
Charges Scheme for the Severn Trent Water and United Utilities Waste Inset Networks 2024-2025 – Download
Charges Scheme for the Severn Trent Water Inset Networks 2024-2025 – Download
Charges Scheme for the South East (East)water and Southern Water waste network 2024 – 2025 – Download
Charges Scheme for the South East (West) Water and Southern Water’s waste network 2024-2025 – Download
Charges Scheme for the South East (West) Water and Thames network 2024-2025 – Download
Charges scheme for the South West Water network 2024-2025 – Download
Charges Scheme for the Sutton and East Surrey Water and Thames network 2024-2025 – Download
Charges Scheme for the Thames Water Inset Networks 2024-2025 – Download
Charges scheme for the Wessex Water network 2024 – 2025 – Download
Charges Scheme for the Yorkshire Inset Networks 2024 – 2025 – Download
Charges Scheme for the Yorkshire Water and Severn Trent waste Networks 2024 – 2025 – Download
Charges Scheme for United Utilities Inset Network 2024 – 2025 – Download
Charges scheme Northumbrian Water 2024-2025 – Download
